We are using AWS S2S tunnel to route customer traffic to private APIs.
customeAPIs are set behind Applcation Load balancer .
We tried setting up a CNAME record to point to ALB DNS name. (ALB DNS resolves to one of the private IPs)
Also set the record to grey cloud.
But while using the API get Error 1002 ( local or disallowed ip).
ALB subnet is using 172.18.0.0/16 IPs